- Companies
- Specialist contractors
- Hailsham
- Mirox Holdings Ltd
Mirox Holdings Ltd
- Company number
- 12363462
- Incorporated
- 13 Dec 20196 years trading
- Registered office
- 30-34 North Street, Hailsham, East Sussex, BN27 1DW
- Nature of business
- Other specialised construction activities n.e.c.; Buying and selling of own real estate; Other letting and operating of own or leased real estate; Management of real estate on a fee or contract basis
Mirox Holdings Ltd is a 6-year-old private limited company registered in Hailsham, company number 12363462, one of 36 specialist construction companies in Hailsham. Companies House shows its accounts as overdue: they were due on 30 September 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £3,205 (-91.9%) on the year before, to -£6,693.
- Net assets rose in 0 of 4 year-on-year comparisons on record.
- Current assets of £34K against £23K owed within a year: 1.5 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2020 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2024 | -£6,693 | £13 | £34K | £23K | 0 |
| 31 Dec 2023 | -£3,488 | £172 | £34K | £12K | 0 |
| 31 Dec 2022 | -£3,488 | £172 | £50K | £28K | 0 |
| 31 Dec 2021 | -£2,309 | £374 | £50K | £17K | 0 |
| 31 Dec 2020 | -£740 | £6,723 | 0 |
Where Mirox Holdings Ltd is registered
The registered office is in Hailsham (BN27), in the Wealden local authority area, South East. Show BN27 1DW on a map.
Other trade companies in BN27
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- Trinity Build Group LtdInstallers
- Brighton Laundry Lady LtdCleaning companies
- Corelink FM LtdProperty developers
- Grimebusters LtdCleaning companies
- Sequoia Fire Protection LimitedInstallers
- Eagle and Wolf Construction LtdBuilders
- Worcester Plumbing & Heating LtdPlumbers and heating engineers
Shared registered office
219 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Mirox Holdings Ltd files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2026 to 31 Oct 2026 | £150 |
| 1 to 3 months late | 1 Nov 2026 to 31 Dec 2026 | £375 |
| 3 to 6 months late | 1 Jan 2027 to 31 Mar 2027 | £750 |
| More than 6 months late | From 1 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2027 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 12363462
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 December 2019 (6 years ago)
- Registered office
- 30-34 North Street, Hailsham, East Sussex, BN27 1DW
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Buying and selling of own real estate (SIC 68100)
Other letting and operating of own or leased real estate (SIC 68209)
Management of real estate on a fee or contract basis (SIC 68320) - Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 17 November 2025
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Hailsham
Other active specialist construction companies registered in Hailsham.
- MSP Property Maintenance Limited2002
- Projection Rendering Ltd.2005
- Rig Nation Touring Co. Limited2021
- Runger-Field Construction Limited2022
- Sackville Plant Hire Ltd1999
- Sono Solutions Ltd2017
- Stoneleigh Kitchens & Developments Limited2019
- Strand Estate Consultancy Ltd2012
All specialist construction companies in Hailsham · All trades in Hailsham · Specialist contractors across the UK
Frequently asked questions
When are Mirox Holdings Ltd's accounts due?
Mirox Holdings Ltd's accounts were due at Companies House on 30 September 2026 and the register shows them as overdue.
When is Mirox Holdings Ltd's CT600 due?
The CT600 for the period to 31 December 2025 is due at HMRC by 31 December 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2026.
Is Mirox Holdings Ltd still trading?
Mirox Holdings Ltd is listed as active on the Companies House register (checked 13 Oct 2026). Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Mirox Holdings Ltd do?
Mirox Holdings Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999); Buying and selling of own real estate (SIC 68100); Other letting and operating of own or leased real estate (SIC 68209); Management of real estate on a fee or contract basis (SIC 68320).
How old is Mirox Holdings Ltd?
Mirox Holdings Ltd was incorporated on 13 December 2019, 6 years ago.
What is the penalty if Mirox Holdings Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Mirox Holdings Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.